Combined filling and warp stop motion for looms



- April 29, 1930. E N 1,756,606

COMBINED FILLING AND WARP STOP MOTION FOR LOOMS Filed Aug. 1, L927 2Sheets-Sheet l April 29, 1930. Y J. REGAN I COMBINED FILLING AND WARPSTOP MOTION FOR LOOMS Filed Aug. 1 1927 2 Sheets-Sheet 2 Patented Apr.29, 1930 Erica Tsar JOHN REGAN, on NEW BEDFORD, MASSACHUSETTS, essreivonTo cnomrtron &.

KNOWLES LOOM wonxs, or woncnsrnn, sinssacnusnsrs, A CORPORATION onMASSACHUSETTS COMBINED FILLING AND VIARP STOP MOTION FOR LOOMSApplication filed August 1, 1927. Serial No. 209,653.

This invention relates to. combined filling and warp stop motions and itis the general object of the invention to prov1de means whereby theactuating mechanism for the warp stop motion may be used to actuate thefilling stop motion. I

Patent No. 1,360,688 shows a form of knock-off motion which is generallyemployed in connection with my former Patent- No. 1,265,112 wherein arocking lever is effective at the time of warp fault to move the shipperhandle to loom stopping position. It is'an important objectof my presentinvention to utilize this actuating lever to move a part correspondingto the ordinary goose-neck or snake head of the so-called side filling.stop motion to the end that one actuator lever will be effective to stopthe loom through the side filling and also warp stop motions.

Certain looms are so constructed as to have a cloth supporting boardwhich extends far enough back from the breast beam as to have verylittle clearance with the lay when the latter is in its extreme forwardposition, thus rendering difiicultthe placing of the ordinary sidefol-l; lever between the cloth board and the lay. t is a further objectof my present invention to provide a side stop motion with an actuatingmember having a regular vibrating motion, said part passing through aportion of the lay and being outof the range of the cloth board so as topermit the latter to be as close to the lay as desired.

It a further object of my present invention to combine the filling andwarp stop motions in such a way that the filling stop motion shall beeffective to stopthe loomon alternate picks while the warp stop motionshall be effective to stop the loom on the intervening picks.

"i -Yith these and other objects in view which will appear as thedescription proceeds, my invention resides in the combination andarrangement of parts hereinafter described and set forth in the claims.

In the accompanying drawings, wherein I have shown a convenientembodiment of my invention,

Fig. 1 is a vertical section taken through a 100m. naving my inventionapplied thereto,

Fig. 2 is a top plan view taken in the direction'of arrow 2, Fig. 1, i i

Fig. 3 is an enlarged detail side elevation of the actuating mechanismfor. the combined warp filling stop motions, 1

.Fig. 4 is'an enlarged detail top plan View taken in the direction ofarrow -1 Fig.1, and Fig. 5 is a vertical section on line 5-5 of Fig. 4.I

. Referring to Figs.1,2 and 3 I have shown a loom side having in thelower portion thereof a constantly rotating driving shaft 11 to which issecured a cam 12. Said shaft has a complete. revolution in tWo picks ofthe loom andthe cam cooperates with a cam lever 13. fuicrumed at 14; andadjustably connected toan upright rod 15. E-

.The head for actuating part of the warp stop motion includes asupporting bracket 16 on which is adjustably mounted the frame 17 in theupper portion of which is secured a studlS. Rocking freely on said studis the lever 19 adjustably connected to the upper end of rod 15. Hook 20is formed on the Y lever 19 to cooperate with adog 21 pivotally mountedon the lower end of lever 22 also freely pivoted on the stud 18. v Aplurality of noncircular detector rods 23 are connected together by arms24 and link 25 to a driving rod 26. The upper ends of saiddriving rodextends through a stud 27 carried by the lever 19 and the lower end ofsaid rod is pivoted on an arm 28 extending from the left hand link 24 asshown in Fig. 3. The upper end of the rod is free to slide through thestud 27 and a compression spring 29 is-interposed between said stud andacollar 30 adjustably held on the rod. 7

As the shaft 11 rotates the lever 19 will be rocked first in onedirection and then in the other around the stud 18 so that the spring alifting pin 32 which as shown in Fig. 3 is book approaches the dog 21and moves said dog out of the path of the hook, but when free movementof the non-circular rods 23 is *resisted by a fallen drop wire D thearms 24 willbe held against swinging movement and the pin 32 will be indownposition so that the 7 dog 21 will remain in the path of the hook20.

As the lever 19 moves in a left hand direction as viewed in Fig. 3 thedog and hook will engage each other and the lever 22 will be given aleft hand movement to effect loom stoppage by mechanism to bedescribed.The matter thus far described is substantially the same as that shown inthe aforesaid patents to Holmes and myself and forms no part of thepresent invention except as to the construc- [tion of the upper end ofthe lever 22.

A filling stop motion comprises a stand 40 or idle stroke so thatif theloom shouldbe fixed to the loom frame and having slidably mountedtherein a fork carrying member 41 to the rearend of which is pivotallymounted the filling fork42. The layL is provided with a slot 48 in theupper surface thereof through which extends the forward end of a rod'44the rear end of Which is connected to Y the oscillating lever 19 at 45.Said. rod is supported by abracket'B and has the front end thereofbentupwardly as at 46 and lies under the sliding'member 41 as shown moreparticularly in Figs. 4 and 5. The forward end of the fork is providedwith a loop 47 which is normally in the path of the upturned end 46 ofrod 44. The sliding member41 is provided with a projection'48 which liesbehind the finger 49 carried on a knock-off'lever 50 pivoted to a stand51 held on the'loom frame. Saidjlever 50 has a forwardlyextending arm52which projects through a slot 53 in shipper rod 54 extending along thefront of the. loom substantially parallel to the breast beam 55. Theshipper rod 54 may be of the form, shown in Patent No. 884,614 and iseffective-when moved in the direction of arrow A Fig. 4 to stop theloom, movement in the opposite'direct-ion applying the driving power tothe loom to cause operation of the same.

A control rod 56 is pivotally connected at nvsaeoe weft is present thefork 42 will be swung on its pivot tomove the loop 47 above the end 46of the rod 44and as the latter moves forwardly the slide member 41 willremain at rest. hen the filling is broken however,

the fork 42 will not berocked on its pivot and as the upturned en'd46advances itwill engage the loop 47 and move the sliding member41forwardly to cause theproject'ion 48 to move the finger 49 to the dottedline posiback and forth with the hook 20. So long as V tion shown inFig. 4. This movement is 'accompanied by a movement of the shipper rodin the direction of arrow A to stop the loom.

Asinspection of the camwill show that when it is in the position shownin Fig.1 the hook 20 w1ll be completing its idle stroke while the rod 44will be completing its work ng stroke so that should the loom be stoppedbecause of faulty filling the lever 22 and the rod 56 will be free tomove without interference on the part of the hook. Also it will be seenthat on the next pick the hook 520 will have a rocking stroke while therod 44 will'have areturn stopped on this pick by a warp fault the rod 56can move the lever 50 while the'rod 44 is on its idle or inoperativestroke. By having the filling and warp stop motions operate on differentpicks I avoid any possibility of one interfering with the free action ofthe other.

It will be seen that the spring 29 is effec-' tive to give a yieldingdrive for the warp stop V motion when the actuator lever 19 rocks in onedirection and that the substantially horizontal rod 44 which cooperateswith the filling stop motion is driven positively from the actuatorlever on alternate oscillations of the actuating lever.

From the foregolng itwill be seen that l have provided a combinedfilling and warp stop motion wherein the power forstopping the loom dueto the instruinentality of either :of the motions is derived from asingle rocking lever and that the connections are such that said leverhas a rocking stroke in one direction on one pick for one of the motionsand has a'rocking stroke in the other direction on the following pickfor the other motion, so that there is no possibility of confusion orinterference between the motions in their respective operations to stopthe loom. It will further be seen that the rod 44 oscillates through aslot formed in the top ofthe the filling stop motion operate when thelay 'is in-its extreme forward position and under.

many conditions it is preferable to have the warp stop motion operate tostop the loom at the same part of the pick so that the cam may be madesymmetrical to permit reversal-of.

the same on the driving of the bottom shaft. It will be understood,however, that this relation between the desirable times for stopping theloom is not essential, it being permissible to stop the loom from thewarp stop motion at times other than those when the lay will be in itsextreme forward position.

Having thus described my invention it will be apparent that changes andmodifications may be made therein by those skilled in the art withoutdeparting from the spirit and scope of the invention and I do not wishto be limited to the details herein disclosed, but what I claim is:

1. In loom stoppingv mechanism, a warp stop motion, a filling stopmotion, an actuating lever, means to give said lever operative movementsin opposite directions, 'means under control of the warp to render saidlever effective to stop the loom when said lever rocks in one directionand'there is a fault in the warp, and additional means under control ofthe filling to render said lever effective to stop the loom when saidlever rocks in the other direction and there is a fault in the filling.

2. In loom stopping mechanism, a warp stop motion, a filling stopmotion, an actuating lever movable first in one direction and then inthe other and having such movements in regular sequence, means undercontrol of the warp to render said lever effective to stop the loom whenthere is a fault in the warp and said lever is rocking in one direction,and additional means under control of the filling to render said levereffective to stop the loom when the same rocks in the opposite directionand there is a fault in the filling.

3. In loom stopping mechanism, shipping mechanism, a warp stop motion, afilling stop motion, an actuator lever having regular movements inopposite directions and having a cycle of movements which requires twopicks of the loom for its completion, and means to connect said leverwhen the .same rocks in one direction with the shipping mechanism tostop the loom when there is a fault in the warp, and means to connectsaid lever when the same rocks in the opposite direction to the shippermechanism to stop the loom when there is a fault in the filling.

4. In loom stopping mechanism, a shipper mechanism movable in onedirection to stop the loom, a warp stop motion, a filling stop motion,an actuating lever and having a cycle of movements which requires twopicks of the loom for its completion having normal movements in oppositedirections and associated with one of said motions,.means effective whensaid lever rocks in one direction to move the shipping mechanism to stopthe loom when there is a fault in the warp, and additional meanseffective when said actuating lever rocks in the opposite direction toing a cycle of movements which requires two picks of the loom for itscompletion having normal periodic movements in opposite d1- rections,and means whereby said actuating lever will cooperate with either stopmotion and move the shipper handle to stop the loom, said actuatinglever moving in one direction to cooperate with the warp stop motion andmoving in the other direction to cooperatewith the filling stop motion.

6. In stopping mechanism for looms, a warp stop motion, a filling stopmotion, a shipper member to be moved in one direction to stop the loom,and an actuating lever and having a cycle of movementswhich requires twopicks of the loom for its completion having regular normal movements inopposite directions, said stop motions to be operatively related to theactuating lever one at a time and causing said actuating lever toproduce a stepping movement of the shipper member irrespective of the'directionin which the actuating lever is rocking.

7. In loom stopping mechanism, a warp stop motion, a filling stopmotion, an actuating lever and having a cycle of movements whichrequires two picks of the loom for its completion having regularmovements in opposite directions and having a movement which is idlewith respect to one of said motions while having a working stroke withrespect to the other motion, a shipper memher to stop the loom, andconnections from said actuating lever whereby either stop motion maycause said actuating lever to effect 7 stopping movement of the memberin whichever direction the lever is rocking.

3. In stopping mechanism for looms, a driving unit, a warp stop motion,a filling stop motion, a connection from'the driving unit to the warpstop motion to actuate the latter, and a second connection between thewarp stopmotion and thefilling stop motion,

said second connection transmitting driving 7 power to the filling stopmotion from the' driving unit which is transmitted through the firstconnection to the warp stop motion.

9. In a stopping mechanism for looms, a

driving unit including a rotating cam, a warp stop motion, a fillingstop motion, connections interposed between the cam of the driving unitand the warp stop motion to actuate the latter to stop the loom upon afault in the warp, a second connection operatively connecting the warpstop motion and the filling stop motion and communicating driving forcederived from the driving unit and transmitted through the warp stopmotion,

the filling stop' motion otherwise being independent of the cam. i

10. In stopping mechanism for a loom, a

' driving unit having a cycle of operation whichrequires two. picks ofthe loom to be completed, a warp stop motion, a filling stop motion,connections from the driving unitto the warp stop motion to actuate thewarp stop j motion to have a loom stopping movement on one pick of thecycle, and connections between the warp stop motion and the filling stopmotion to transmit power derived from the dri'vtween the driving unitand the actuating lever to give the latter a working stroke on one pickof the cycle of the driving unit, a fillingstop motion, a connectionbetween the actuating lever and the filling motion, said secondconnection transmitting a driving force to the filling stop motion whichis derived from the driving unit and communicated through the warp stopmotion to stop theloom through the filling stop niotionon theother pickof the cycle of the driving unit when there is a fault in the filling.

12..Instopping mechanism for a loom, a driving unit having a cycle ofoperation which requires two picks of the loom for its completion, awarp stop motion, an actuating lever forming an essential part of thewarp stopunotion, connections between the driving unit and the actuatinglever to give said actuating lever a working stroke with respect to thewarp stop motion on one pick of the cycle a non-working stroke withrespectto the warp stop motion on the other pick of the c ycle'of thedriving unit a filling stop motion, and connections betweenthe actuatinglever and the filling stop motion effective to actuate the latter by aforce transmitted through the warp stop motion to stop the loom when theactuating levervhas a non-working stroke relatively to the warp stopmotion upon occurrence of fault in the weft 13. In stopping mechanismfor aloom, av driving unit having a cycle of operations requiring twopicks of the loom for its completion,a warp stop motion, a filling stopmotion,

connections between said stop motions and the driving unit whereby thelatter is eifective to'act through thewarp stop motion to stop the loomupon only one pick of the cycle when there is a fault in the warp andthrough the filling stop motion on the other pick of the cycle whenthereis a fault in the filling.

14. l In a stopping motion for looms, a driving unit having a cycle ofmovement which requires two picks of the loom for its completion, a warpstop motion,an actuator lever forming part of the warp stop motion,'afillingstop motion, a connection between the driving unit and theactuator lever to move the latter in one direction on. one pick of thecycle of the unit and in the other direction on the other pick of thecycle, said driving unit being effective to stop the loom throughoperation of the warp stop motion upon fault in the wa p when theactuator lever moves in one direction and being effective to stop theloom through the filling stop motion upon fault in the fillingwhen theactuator lever moves in the other direction. 7

15. In a stoppingmechanism for looms, a filling stop motion, a-warp stopmotion, an actuating lever which oscillates so as to move first incnedirection and then in the other,

means including a yielding element effective to give the warp. stop.motion a detecting movement, said means being actuated by the lever whenthe latter moves in one direction,

and means to transmit a positive driving force from the actuating leverto the filling stop motion when said actuating lever moves in the otherdirection.

16. In a stopping mechanism for looms, a

filling stop motion, a warp stop motion, an actuator lever forming partof the warp stop and having a working stroke relatively to the warp stopmotion and having a nonworking stroke relatively to the warp stop motionbut operative with respect to the filling stop motion, means defining ayielding connection be tween the actuator lever and the warp stop motionto give the latter a detecting movement when the actuator. lever has aworking stroke relatively to the warp stop motion, and

means defining a positive connection between the actuator lever and thefilling stop motion to give the latter a detecting movement when theactuator lever has the non-working stroke relatively to the warp stopmotion.

so 1 y 17; In loom stopping mechanism, a warp fixed my signature.

' JOHN REGAN.

